Which of the following should NOT be done while operating a hoisting machine in windy conditions?

Leaving the machine unattended with a load during windy conditions is a practice that poses significant safety risks and should be avoided. Unattended loads can shift or become unstable in high winds, leading to potential accidents or injuries. Wind can exert force on the load, causing it to sway or move unexpectedly, which increases the chances of it falling or creating a hazardous situation for workers nearby.

Ensuring that all operations are conducted with constant supervision is essential, especially in conditions that may already compromise safety. This includes maintaining control over the hoisting machine and its load to prevent accidents that could harm personnel or cause damage to property.

The other practices mentioned, such as assessing load limits, trimming load weight for stability, and ensuring proper communication with the crew, are all measures that contribute to safe and effective hoisting operations in challenging conditions. They help ensure that the operation is performed safely and that all crew members are aware of the situation, which is crucial for maintaining a safe worksite.